STC-Beale-chassis-53 电路原理图.pdf

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STC-Beale model 53 sn 1531. Photo: James Davidson Note: The Beale company used to make pianos and also cabinets for STC. They later sold radios under their own name but fi tted with STC chassis. There is another STC chassis model 53 (5 valve) that uses much later valve types. 500 ohm 11 ohm ct 1531 11 ohm ct STC-Beale model 53 sn 1531. Differences from set 1802 are shown in blue. Contributed by James Davidson.